package org.zyj.io.example.case5;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;

import java.time.LocalDateTime;

/**
 * TextWebSocketFrame 是一个文本帧
 */
public class MyTextWebSocketFrameHandler extends SimpleChannelInboundHandler<TextWebSocketFrame> {

    @Override
    protected void channelRead0(ChannelHandlerContext ctx, TextWebSocketFrame msg) throws Exception {
        System.out.println("服务器收到消息: " + msg.text());
        //回复消息
        ctx.channel().writeAndFlush(new TextWebSocketFrame("服务器时间: " + LocalDateTime.now() + "  " + msg.text()));
    }

    @Override
    public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
        //longTest表示唯一
        System.out.println("handlerAdded: " + ctx.channel().id().asLongText());
        System.out.println("handlerAdded: " + ctx.channel().id().asShortText());//shortText不是唯一的
    }

    @Override
    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
        System.out.println("handlerRemoved: " + ctx.channel().id().asLongText());
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        System.out.println("异常发生: " + cause.getMessage());
        ctx.close();
    }
}
